Tonsillitis treatment depends on whether a virus or bacteria is causing the infection. Viral tonsillitis, which accounts for most cases, resolves on its own within about a week with pain management at home. Bacterial tonsillitis requires a 10-day course of antibiotics. The first step is figuring out which type you’re dealing with.
How Doctors Tell Viral From Bacterial
Your doctor will likely use something called the Centor score to estimate how probable a bacterial infection is. It assigns one point for each of four signs: visible pus or swelling on the tonsils, swollen and tender lymph nodes in the front of the neck, fever, and the absence of a cough. A higher score means bacteria are more likely. For children under 15, an extra point is added because strep infections are more common in that age group, while adults 45 and older get a point subtracted.
A physical exam alone isn’t enough to confirm the cause. If the score suggests bacteria, your doctor will typically order a rapid strep test or throat culture before prescribing antibiotics. This matters because giving antibiotics for a viral infection won’t help and can contribute to antibiotic resistance.
Treating Viral Tonsillitis at Home
Since antibiotics don’t work against viruses, viral tonsillitis is managed by controlling symptoms while your immune system clears the infection. Most people feel significantly better within five to seven days.
Ibuprofen is one of the most effective over-the-counter options for tonsillitis pain. In adults, it reduces throat pain by 32 to 80% within two to four hours and by about 70% at six hours. In children, the relief is more modest at first (around 25% at two hours), but after two days roughly 56% fewer children still have a sore throat compared to placebo. Acetaminophen (paracetamol) also works well, particularly for longer-term symptom control beyond the first 24 hours.
Beyond medication, practical comfort measures help: stay hydrated with cool or warm fluids (whichever feels better), eat soft foods, and get plenty of rest. Saltwater gargles can temporarily soothe throat irritation. Cold treats like popsicles can numb pain for younger kids who resist other remedies.
Antibiotics for Bacterial Tonsillitis
When a strep test comes back positive, amoxicillin or penicillin is the standard treatment. The typical course lasts 10 days. It’s important to finish the entire course even though you’ll likely feel better within a few days, because stopping early increases the risk of the infection returning and of serious complications like rheumatic fever.
If you have a penicillin allergy, the alternative depends on how severe your allergy is. For mild allergies (a rash, for example), a first-generation cephalosporin is usually safe. For severe allergies where there’s a risk of anaphylaxis, your doctor will turn to a different class of antibiotics entirely, such as clindamycin or a macrolide like azithromycin. Azithromycin is generally considered a third-line option and is reserved for cases where other choices aren’t suitable.
When Corticosteroids Help
For severe sore throat pain, some doctors prescribe a single dose of a corticosteroid alongside other treatments. Research shows this can meaningfully reduce both pain intensity and how long the pain lasts. In studies, patients who received a corticosteroid experienced faster pain relief, with most noticing significant improvement within 36 to 48 hours. At the 24-hour mark, corticosteroid-treated patients were about 22% more likely to have their pain fully resolved compared to those without it. This is typically reserved for more painful episodes rather than mild cases.
Dealing With Complications
The most common serious complication of tonsillitis is a peritonsillar abscess, a pocket of pus that forms beside the tonsil. Warning signs include pain that’s dramatically worse on one side, difficulty opening your mouth, a muffled or “hot potato” voice, and trouble swallowing. This needs medical attention promptly.
Treatment usually involves draining the abscess, either with a needle or a small incision. Needle drainage or incision and drainage works in about 71% of cases without further surgery and is the preferred approach for most patients with a first-time abscess and no other complications. Surgical removal of the tonsils is generally only considered if the abscess doesn’t respond to drainage, if there’s a more extensive infection spreading beyond the tonsil area, or if someone has a history of recurrent tonsillitis episodes alongside the abscess.
When Tonsillectomy Becomes an Option
Surgery isn’t part of the conversation for a single bout of tonsillitis. It’s considered for people who experience recurrent infections that significantly disrupt their lives. The widely used Paradise criteria set the threshold at seven or more documented episodes in a single year, five or more per year for two consecutive years, or three or more per year for three consecutive years.
These are strict benchmarks for a reason. Tonsillectomy carries its own risks and a recovery period of one to two weeks that can be quite painful, especially in adults. For most people, the frequency of infections decreases naturally over time, which is why doctors want to see a well-documented pattern before recommending surgery.
What Recovery Looks Like
Viral tonsillitis typically clears up in about one week. Bacterial tonsillitis takes closer to 10 days to fully resolve, though symptoms usually improve noticeably within two to three days of starting antibiotics. During recovery, you may still have a lingering sore throat, mild fatigue, or slightly swollen lymph nodes even as the infection clears. These are normal and don’t necessarily mean the treatment isn’t working.
If you’re on antibiotics and your symptoms haven’t improved at all after three days, or if they get worse, it’s worth following up with your doctor. This could signal a resistant strain, an incorrect initial diagnosis, or the development of a complication like an abscess that needs different treatment.